• Title/Summary/Keyword: Iterative damapping and decoding

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Performance Evaluation of the Iterative Demapping and Decoding based DVB-T2 BICM module (Iterative Demapping and Decoding 기반 차세대 유럽형 디지털 지상파 방송 시스템(DVB-T2)의 BICM 성능 평가)

  • Jeon, Eun-Sung;Seo, Jeong-Wook;Yang, Jang-Hoon;Kim, Dong-Ku
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.36 no.2A
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    • pp.172-178
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    • 2011
  • In this paper, the performance of bit interleaved of coded and modulation(BICM) module of the second generation of digital terrestrial television broadcasting system(DVB-T2) is evaluated with the help of computer simulation. The frame error rate performance is studied in AWGN, Rayleigh fading and 15% erasure channels. In addition, iterative receiver is considered that exchanges extrinsic information between the rotated demapper and the LDPC decoder. Through the simulation it is observed that under the flat fading Rayleigh channel, about 1.2dB gain at FER of $10^{-4}$ is introduced when rotated constellation and iterative demapping and decoding are employed. Under the 15% earasure channel, rotated constellation gives performance gain of about 5dB at BER of $10^{-4}$ and when IDD is applied, additional performance gain of about 3dB can be achieved.